中国物理B ›› 2009, Vol. 18 ›› Issue (4): 1443-1450.doi: 10.1088/1674-1056/18/4/026

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Studies of K-shell x-ray energy shifts induced by MeV/u heavy ions

宋张勇1, 杨治虎1, 阮芳芳1, 于得洋1, 蔡晓红1, 邵剑雄2, 崔莹2, 张红强2, 杜鹃2, 高志民2, 陈熙萌2   

  1. (1)Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000, China; (2)School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2008-07-14 修回日期:2008-08-21 出版日期:2009-04-20 发布日期:2009-04-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10774149).

Studies of K-shell x-ray energy shifts induced by MeV/u heavy ions

Song Zhang-Yong(宋张勇)a)†, Yang Zhi-Hu(杨治虎)a), Shao Jian-Xiong(邵剑雄)b), Cui Ying(崔莹)b), Zhang Hong-Qiang(张红强)b), Ruan Fang-Fang(阮芳芳)a), Du Juan(杜鹃)b), Gao Zhi-Min(高志民)b), Yu De-Yang(于得洋)a), Chen Xi-Meng(陈熙萌)b), and Cai Xiao-Hong(蔡晓红)a)   

  1. a Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000, China; b School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • Received:2008-07-14 Revised:2008-08-21 Online:2009-04-20 Published:2009-04-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10774149).

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摘要： This paper reports that the K x-ray spectra of the thin target 47Ag, 48Cd, 49In and 50Sn were measured by an HPGe semi-conductor detector in collisions with 84.5~MeV 6C4+ ions. Our experiment revealed the Kα x-ray energy shifts were not obvious and the Kβ1 x-ray energy shifts were about 90～110~eV. The simple model of Burch \emph{et al} has been previously used to calculate the K x-ray energy shifts due to an additional vacancy in 2p orbit. The present work extends the model of Burch to calculate the x-ray energy shifts of multiple ionized atoms induced by heavy ions with kinetic energy of MeV/u. In addition to our experimental results, many other experimental results are compared with the calculated values by using the model.

关键词: K-shell x-ray energy shifts, heavy ion collisions, multiple ionization

Abstract: This paper reports that the K x-ray spectra of the thin target 47Ag, 48Cd, 49In and 50Sn were measured by an HPGe semi-conductor detector in collisions with 84.5 MeV 6C4+ ions. Our experiment revealed the $K\alpha$ x-ray energy shifts were not obvious and the $K\beta_1$ x-ray energy shifts were about 90～110 eV. The simple model of Burch et al has been previously used to calculate the K x-ray energy shifts due to an additional vacancy in 2p orbit. The present work extends the model of Burch to calculate the x-ray energy shifts of multiple ionized atoms induced by heavy ions with kinetic energy of MeV/u. In addition to our experimental results, many other experimental results are compared with the calculated values by using the model.

Key words: K-shell x-ray energy shifts, heavy ion collisions, multiple ionization

中图分类号:  (X-ray spectra)

  • 32.30.Rj
34.50.-s (Scattering of atoms and molecules) 32.70.Jz (Line shapes, widths, and shifts)